function chageRoomCondition(){
    var iframe = document.getElementById("frame_content");
    iframe.src="../roomCondition/roomCondition.html";
}
function register(){
    var iframe = document.getElementById("frame_content");
    iframe.src="../checkIn/checkIn.html";
}
function selectInformation(){
    var iframe = document.getElementById("frame_content");
    iframe.src="../selectInformation/selectInformation.html";

}
function checkOut(){
    var iframe = document.getElementById("frame_content");
    iframe.src="../checkOut/checkOut.html";
}